Joseph Landau's profile - activity

When a problem such as a broken link is found in the ROS documentation (for instance, the link for "move_base_msgs/MoveBaseActionGoal" on the page http://wiki.ros.org/move_base , where should it be reported?

The tutorial page for Actionlib Client has two references to further documentation, both of which have a broken link.

"Documentation of all the constructor options and available functions can be found in the ROSLIB.ActionClient docs."

"The ROSLIB.Goal docs describe all the constructor options and functions available. "

Can anyone tell me where this documentation is? And, how do I raise this sort of issue?

I have a webpage that works beautifully on Chrome, but on Firefox, rosbridge does not connect. No error, no message, only silence. The code is the usual:

ros = new ROSLIB.Ros({
url: robotUrl
});''

I have tried with and without ssl. It feels like I have overlooked something obvious, but what?

In that case, I get: "Event {path: Array[0], cancelBubble: false, returnValue: true, srcElement: WebSocket, defaultPrevented: false…}" This is clickable and expands to show lots of properties. Incidentally, the debugger shows that roslib.js (line 651?) has the message. Or, at least, a message.

When I concatenate the error variable (here's the code): "console.log ('Error connecting to websocket server: ' + error);", the result is: "Error connecting to websocket server: [object Event]" Looks like the argument called error is an Event rather than a string?

No, I was using ROS hydro. I have the impression that the behavior we noted was coming from the browser, not from ROS. However, I have not tested that. Sorry it didn't help.

Using roslibjs and rosbridge--I'd like to get more information when there is an error, particularly when connecting. My code is:

ros = new ROSLIB.Ros({
url: robotUrl
});

ros.on('error', function(error) { console.log ('Error connecting to websocket server: ' , error); });

When an error occurs, I see in the debugger that the variable "error" contains a very involved structure, and I guess the actual error message is in there somewhere, but where?

If you are using a self-signed certificate, this occurs because the browser thinks the connection is insecure. I think maybe snakeoil has the same problem. Using the same browser and the same web address including the port numer, but with https replacing wss, attempt to connect manually from the address bar. You should get the dialog that allows you to accept the insecure connection. After that, the wss connection works. At least for me.

That doesn't seem to work.

viki@c3po:~/catkin_ws/src/stdr_tele/launch$ roslaunch stdr_tele stdr_keyboard.launch [stdr_keyboard.launch] is neither a launch file in package [stdr_tele] nor is [stdr_tele] a launch file name

Also fails when I attempt the roslaunch from the parent folder.

Using the stdr_simulator tutorial Using turtlebot for teleoperation

the command:

viki@c3po:~/catkin_ws/src/stdr_tele/launch$ roslaunch stdr_tele stdr_keyboard.launch 
receives the message:
[stdr_keyboard.launch] is neither a launch file in package [stdr_tele] nor is [stdr_tele] a launch file name

The launch file:

<launch>
  <!-- turtlebot_teleop_key already has its own built in velocity smoother -->
  <node pkg="turtlebot_teleop" type="turtlebot_teleop_key" name="turtlebot_teleop_keyboard"  output="screen">
    <param name="scale_linear" value="0.5" type="double"/>
    <param name="scale_angular" value="1.5" type="double"/>
    <remap from="turtlebot_teleop_keyboard/cmd_vel" to="robot0/dmd_vel"/>
  </node>
</launch>

What am I doing wrong?

"uninstall ros" didn't work for me; I needed to say "uninstall ros-groovy"